Abstract：【Objective】To investigate the levels and significance of inducible protein 10 (IP-10), interleukin-17 (IL-17) and miR-125a in peripheral blood mononuclear cells (PBMC) of patients with ankylosing spondylitis (AS). 【Methods】A total of 110 AS patients were selected as the observation group, and 100 healthy volunteers were selected as the control group. The expression of IP-10, IL-17 mRNA and miR-125a in PBMC were detected and compared between the two groups. 【Results】The relative expression levels of IP-10 and IL-17 mRNA in PBMC of the observation group were significantly higher than those of the control group (P<0.05), While there were no significant difference in the relative expression of miR-125a in two group (P>0.05). The relative expression levels of IP-10 and IL-17 mRNA in PBMC of patients in active phase were significantly higher than those in stable phase (P<0.05), however, there was no significant difference in the relative expression level of miR-125a between patients in active phase and stable phase (P>0.05). There were no significant difference in the expression levels of IP-10, IL-17 mRNA and miR-125a in PBMC between patients of different gender and age in the observation group (P>0.05). Levels of IP-10 and IL-17 mRNA were positively correlated with AS disease activity (ASDAS) score (r=0.343, 0.311, P<0.05), while there was no significant correlation of miR-125a with ASDAS score (r=0.112, P>0.05). 【Conclusion】The expression of IP-10 and IL-17 in PBMC of AS patients are significantly increased, which are related to the severity of the disease, while there is no significant abnormality in the expression of miR-125a.
2021, Vol. 38 
